Hypophosphoric acid 50%
| Formula | H3PO2 |
| Density | 1.2 g/cm3 |
| Molar mass | 66.00 g/mol |
| HS code | 28111980 |
| Storage (temprature) | Without limitation |
| SDS | Available |
| R phrase | R 34 |
| S phrase | S 26-36/37/39-45 |
| Assay | 48.0 – 52.0 | % | |
| Description | Conforms | ||
| Solubility | Conforms | ||
| Identification | Conforms | ||
| Specific gravity | 1.21 – 1.26 | g/cm3 | |
| Limit of barium | Conforms | ||
| Heavy metals | ≤ | 0.002 | % |
| Limit of oxalate | Conforms |
Hypophosphoric acid 50% is an inorganic oxoacid of phosphorus present as a 50% aqueous solution, used primarily in chemical synthesis and specialized industrial applications.
🏭⚗️ Production
Hypophosphoric acid is produced by the controlled oxidation of phosphorus compounds such as hypophosphorous acid or by electrochemical methods. The 50% solution is prepared by diluting the concentrated acid with water under carefully controlled conditions.
🔬 Properties
It appears as a colorless to pale yellow liquid, with a chemical formula H₄P₂O₆ (for hypophosphoric acid) and molar mass around 162.0 g/mol. The 50% solution is strongly acidic, reactive, and acts as a reducing agent. It is stable under cool, dry conditions but decomposes upon heating.
🧪 Applications
Hypophosphoric acid 50% is used in specialized chemical syntheses, as a reducing agent, and in analytical chemistry. It also finds applications in metal treatment and as a precursor for other phosphorus-containing compounds.
⚠️ Safety
It is corrosive and toxic; contact with skin or eyes can cause severe burns. Inhalation or ingestion is harmful. Proper protective equipment including gloves, goggles, and ventilation is essential. It should be stored in corrosion-resistant containers away from heat and incompatible substances.
